A heating element is designed using resistance heating silk and printed board, and an instrument of temperature measurement and control is designed using transistor as the temperature sensor.
介绍利用电阻加热丝、印制基板材料设计制做的加热元件和用晶体管作温度传感器设计制做温度测量控制器的电路工作原理及其在物理实验中的应用。
Main craft: the etching (nips board), the pressure to flush, the note paint (to top up), silk India, the drop rubber, to imitate the enamel, the zinc base alloy compression casting and so on.
主要工艺：蚀刻(咬板)、压冲、注漆(填油)、丝印、滴胶、仿珐琅、锌合金压铸等。
Company products are: the wood is sound-absorbing board, wood silk is sound-absorbing board, cloth art is sound-absorbing board, fiber is sound-absorbing board, dry-hanging accessories etc.
公司产品有：木质吸音板、木丝吸音板、布艺吸音板、纤维吸音板、干挂装饰板等各种类型吸声材料及装饰板。
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